Yep. This is 100% right. I've got warehouses that send me things in EDI. I've got warehouses that have me pull something down over sftp in csv or xml. I've got

Yep. This is 100% right. I've got warehouses that send me things in EDI. I've got warehouses that have me pull something down over sftp in csv or xml. I've got warehouses with bizarre SOAP apis. I've got warehouses with bloody custom REST APIs [that probably cost them $10,000+] sitting on a mac mini that sits in their office. Your comment really should be at the top since this blog post is little more than a warning of "Pick the right fulfillment house or it'll eat 6 months of your life"